Review on 40300 Optional Remote Display Hardwire by Benjamin Cleveland

Works exactly how I want it to. I only give four stars because of the price. I feel like this should have been included in ems from the start. Makes troubleshooting easier. I was hesitant to buy one, but I was tired of taking apart the sofa to see what error lights are on the ems. It's also very nice to see how many amps are being drawn when using things like the air conditioning and TV. Helps figure out what can start when we are in a 20 amp circuit at campgrounds. Even though it's expensive I would say it's necessary to get the full functionality of the ems block.